Chemical Reaction Engineering A Catalyst Increases the equilibrium concentration of the product Changes the equilibrium constant of the reaction Shortens the time to reach the equilibrium None of these Increases the equilibrium concentration of the product Changes the equilibrium constant of the reaction Shortens the time to reach the equilibrium None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction. Less than Equal to or more than Equal to More than Less than Equal to or more than Equal to More than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by Diffusion within the pellet None of these External mass transfer Reaction Diffusion within the pellet None of these External mass transfer Reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible. ∞ < 0.5 > 0.5 0 ∞ < 0.5 > 0.5 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of a gas phase reaction is given by K . CA . CB. If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be __________ times. 4 2 16 8 4 2 16 8 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Autocatalytic reactions are best carried out in a Recycle reactor CSTR CSTR in series Plug flow reactor Recycle reactor CSTR CSTR in series Plug flow reactor ANSWER DOWNLOAD EXAMIANS APP
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